JPH06111166A - Plant monitoring device - Google Patents

Abstract

PURPOSE:To provide a plant monitoring device capable of easily investigating the cause of plant abnormality. CONSTITUTION:In the plant monitoring device, video information displayed on a display device 2 when abnormality occurs in the plant is successively recorded in a video device 3. A retrieving key code for retrieving plant monitoring history information time-sequentially stored at the time of plant monitoring is converted into a sound signal and stored in the video device 3 as the sound signal together with the video signal. At the time of analyzing plant abnormality, the video information stored in the video device 3 is regenerated and displayed on the display device 2, the retrieving key code information recorded as the sound signal is demodulated, history information corresponding to the key code is accessed from a storage device and displayed on the device 2 simultaneously with the video information. Thus the image information for plant monitoring and information stored in the plant monitoring device are displayed on the same display screen and used for the analysis of a cause.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant monitoring device used for monitoring various industrial plants.

[0002]

2. Description of the Related Art Conventionally, a plant monitoring device used for monitoring various industrial plants has a function of recording plant monitoring screen information displayed on a display device as a video signal in a recordable and reproducible video device. Things are known.

[0003]

However, in such a conventional plant monitoring apparatus, the video information to be displayed on the display device could be recorded in the video apparatus and reproduced, but the plant monitoring apparatus could be reproduced. There is no known device having a function of recording and reproducing information related to the internal information which is being processed by the program. Therefore, the analysis of the plant abnormality and the system abnormality must be performed based on the history information printed by the plant monitoring device, such as the operation record and the alarm history, and the trend data information.

However, since all records operated by the display device of the plant monitoring device are not designed to be recorded as history information, it takes a lot of time to analyze the above-mentioned plant abnormality and system abnormality. There was a point.

Further, when a system abnormality such as a screen lock occurs in which the operation on the screen of the display device becomes impossible, there is no operation record up to that point, so that the operator has an operation procedure until the screen is locked. It requires a lot of time to investigate and investigate the cause, and it also takes a lot of time, and it takes time for problem analysis because the information obtained from the operator is not always accurate. There was a problem.

The present invention has been made in view of the above conventional problems, and by utilizing a video device,
The internal information detected by the conventional plant monitoring device and the display screen of the display device can be simultaneously displayed on the same display device screen, and the operator's operating procedure can be reproduced in time series along with the plant status at the time of a plant abnormality. An object of the present invention is to provide a plant monitoring device capable of efficiently investigating the cause of an abnormality.

[0007]

A plant monitoring device of the present invention includes a display device for displaying a plant monitoring screen, a display processing unit for providing the display device with video information necessary for plant monitoring, and a plant monitoring device for the plant monitoring device. A storage device for storing internal information together with a search key code, a modulator for converting the search key code for searching the internal information stored in the storage device into an audio signal, a video signal given to the display device by the display processing unit, and the A video device capable of simultaneously recording and reproducing an audio signal which is an output of a modulator and, when reproducing a video signal recorded in the video device, searching the audio signal recorded in the video device. A demodulator that demodulates into a key code, and the display processing unit that retrieves corresponding internal information from the storage device based on the search key code demodulated by the demodulator It is obtained by an information extraction processing section that gives.

[0008]

In the plant monitoring device of the present invention, the video information displayed on the display device when a plant abnormality occurs is sequentially recorded in the video device. Further, a search key code for searching the plant monitoring history information stored in time series during plant monitoring is converted into an audio signal and stored in the video device as an audio signal together with the video signal.

Then, when the plant abnormality is analyzed, the image information recorded in the video device is reproduced and displayed on the display device, and the search key code information recorded as an audio signal is demodulated and stored in the storage device. The history information corresponding to the search key code is called and displayed on the display device.

Thus, the video information of the plant monitoring and the information in the plant monitoring device are displayed on the same display device,
Provide for cause analysis.

[0011]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a functional block diagram of an embodiment of the present invention. A plant monitoring apparatus of this embodiment is a process monitoring controller 1, CRT display devices 2 and 2 ', and a CRT display from the process monitoring controller 1. It comprises a video device 3 for recording the video signal output to the device 2 and reproducing and displaying the video signal on the CRT display device 2 '.

Then, the process monitoring controller 1 is
CR for processing video information to be displayed on the CRT display device 2
A search key code creation unit 5 that creates internal information of the plant monitor controller 1 to be recorded together with the display information of the T display processing unit 4 and the CRT display device 2 as data and search key code information corresponding to the data. A search key code output unit 6 that outputs the search key code signal created by the creation unit 5, a modulator 7 that converts the output of the search key code output unit 6 into an audio signal and gives it to the video device 3, an external device such as a hard disk. The data storage unit 8 including a storage device is provided.

The process monitor controller 1 also demodulates the audio signal of the video device 3 into a signal that can be input to the process monitor controller 1, and converts the demodulated signal of the demodulator 9 into the original search key code information. Search key code input section 10, information extraction processing section 11 for extracting internal information of the corresponding process monitor controller 1 from data storage section 8 based on the search key code information obtained by this search key code input section 10, and this information extraction The internal information of the process monitor controller 1 extracted by the processing unit 11 is displayed on the CRT.
A CRT display processing unit 4'for displaying on the display device 2'is provided. The CRT display devices 2 and 2'and the CRT display processing units 4 and 4'can share one device.

Further, as shown in the illustrated embodiment, a microphone 12 is installed near the CRT display device 2, and an actual audio signal c is recorded and reproduced on the video device 3 together with the video signal a and the audio signal b of the search key code. It may be possible to reproduce and output from the speaker 13 at times.

Reference numeral 14 is a printing device.

Next, the operation of the plant monitoring device having the above configuration will be described.

During normal plant monitoring, the process monitoring controller 1 displays a monitoring screen on the CRT display device 2 to control the entire plant monitoring, and the operating states of various components of the monitored plant and the measured values of various parameters. The data is monitored, and the trend data is stored in the data storage unit 8 at every moment.

Then, if some abnormality occurs in the plant or an abnormality occurs in the monitoring system, the process monitoring controller 1 outputs the video signal a output from the display processing unit 4 to the CRT display device 2 to the video device 3. Record. Also, in parallel with this, the search key code creation unit 5 causes the process monitor controller 1 to be recorded in the video device 3.
The information inside is created and stored in the data storage unit 8 with the search key code. At the same time, the search key code creation unit 5 outputs the search key code to the search key code output unit 6
To the external modulator 7, and the modulator 7 converts the search key code information into the audio signal b and outputs it to the video device 3.
It is recorded together with the video information on the abnormality monitoring screen.

When it is desired to view the plant state at the time of occurrence of an abnormality by reproducing the video device 3, the video signal a recorded in the video device 3 is displayed on the CRT.
The image is reproduced on the display device 2'and displayed on the a'part of the CRT display device 2 '.

At the same time, the voice signal b is demodulated by the demodulator 9 and input to the search key code input unit 10 of the process monitor controller 1, where it is converted into a signal readable by the process monitor controller 1 and information is extracted. The information retrieval processing unit 11 retrieves the process monitoring information stored in the corresponding retrieval key area from the data storage unit 8 based on the retrieval key code.
The CRT display processing section 4'displays this data on the b'section of the CRT display device 2 '.

Thus, when an abnormality occurs in the monitored plant or an abnormality occurs in the monitoring system, the process monitor controller 1 along with the reproduction display a'of the plant monitor screen when the abnormality occurs due to the reproduction of the video device 3. It is also possible to display the internal information b'of the above, and to reproduce the abnormality of the plant or the abnormality of the system by correlating the CRT screen information and the internal information at that time and use them for investigating the cause.

2 and 3 are flow charts showing the detailed operation of the above embodiment.

First, as shown in FIG. 2, when an abnormality is detected during normal plant monitoring, the abnormality occurrence information is printed by outputting it to the printer 14. Along with this, the process monitoring controller 1 performs an abnormality detection process, and the history information inside the process monitoring controller at the time of the abnormality occurrence is searched for in the data storage unit 8 by a search key code, INDEX-
Save it in correspondence with i.

The above-described recording operation upon occurrence of an abnormality is performed by the retrieval key code information, that is, INDEX-i, for each abnormality occurrence event.
The number will be reversed and will be performed in sequence.

Next, when reproducing the video device 3 for the purpose of investigating an abnormality or for other purposes, the video signal a of the video device 3 is reproduced and displayed on the a'part of the CRT display device 2 ', as shown in FIG. In parallel with this, the audio signal b is applied to the demodulator 9 and taken into the process monitor controller 1, the search key code INDEX-i is extracted, and data is stored based on the extracted search key code INDEX-i. Part 8
The internal information of the process monitor controller stored in the area of the corresponding search key is taken out from the above, and is displayed and displayed on the b'part of the CRT display device 2 '.

In this way, both the CRT display information and the history information at the time of occurrence of an abnormality are displayed on the CRT display device 2 ', and the cause of the abnormality is investigated.

When recording on these video devices 3, the audio signal c picked up by the microphone 12 is also recorded at the same time,
Alternatively, the audio signal c may be output from the speaker 13 during reproduction.

[0029]

As described above, according to the present invention, the search key code information for extracting the internal history information of the plant monitoring device stored in the data storage unit together with the image information of the display device in the video device is sequentially recorded as an audio signal. Then, when playing back the video device for investigating the cause when an abnormality occurs, the video signal is played back and the audio signal is played back to obtain the search key code, and the history information corresponding to this is stored in the data storage section. Since it is taken out from the display device and displayed on the display device, the abnormality of the monitored plant can be investigated while looking at the display screen of the display device, and the abnormality analysis can be easily performed.

[Brief description of drawings]

FIG. 1 is a functional block diagram of an embodiment of the present invention.

FIG. 2 is a flowchart showing an operation during normal plant monitoring in the above embodiment.

FIG. 3 is a flowchart showing an operation at the time of reproduction of the video device in the above embodiment.

[Explanation of symbols]

 1 Process Monitoring Controller 2 CRT Display Device 2'CRT Display Device 3 Video Device 4 CRT Display Processing Unit 4'CRT Display Processing Unit 5 Search Key Code Creating Unit 6 Search Key Code Output Unit 7 Modulator 8 Data Storage Unit 9 Demodulator 10 Search key code input section 11 Information retrieval processing section

Claims (1)

[Claims] 1. A display device for displaying a plant monitoring screen, a display processing unit for giving video information necessary for plant monitoring to the display device, and a storage device for storing internal information of the plant monitoring device together with a search key code. , A modulator for converting a search key code for searching internal information stored in the storage device into an audio signal, and a video signal given to the display device by the display processing unit and an audio signal as an output of the modulator are simultaneously recorded. A video device capable of reproducing, a demodulator for demodulating an audio signal recorded in the video device into the search key code when reproducing a video signal recorded in the video device, and the demodulator And an information retrieval processing section for retrieving corresponding internal information from the storage device based on the demodulated search key code and giving it to the display processing section. Monitoring device.